function atCalendarControl(){ 
var calendar=this; 
this.calendarPad=null; 
this.prevMonth=null; 
this.nextMonth=null; 
this.prevYear=null; 
this.nextYear=null; 
this.goToday=null; 
this.calendarClose=null; 
this.calendarAbout=null; 
this.head=null; 
this.body=null; 
this.today=[]; 
this.currentDate=[]; 
this.sltDate; 
this.target; 
this.source; 

/************** 加入日历底板及阴影 *********************/ 
this.addCalendarPad=function(){ 
document.write("<div id='divCalendarpad' style='position:absolute;top:100;left:0;width:255;height:187;display:none;'>"); 
document.write("<iframe frameborder=0 height=189 width=250></iframe>"); 
document.write("<div style='position:absolute;top:2;left:2;width:250;height:187;background-color:#336699;'></div>"); 
document.write("</div>"); 
calendar.calendarPad=document.all.divCalendarpad; 
} 
/************** 加入日历面板 *********************/ 
this.addCalendarBoard=function(){ 
var BOARD=this; 
var divBoard=document.createElement("div"); 
calendar.calendarPad.insertAdjacentElement("beforeEnd",divBoard); 
divBoard.style.cssText="position:absolute;top:0;left:0;width:250;height:187;border:0 outset;background-color:buttonface;"; 

var tbBoard=document.createElement("table"); 
divBoard.insertAdjacentElement("beforeEnd",tbBoard); 
tbBoard.style.cssText="position:absolute;top:2;left:2;width:248;height:10;font-size:9pt;"; 
tbBoard.cellPadding=0; 
tbBoard.cellSpacing=1; 

/************** 设置各功能按钮的功能 *********************/ 
/*********** Calendar About Button ***************/ 
trRow = tbBoard.insertRow(0); 
calendar.calendarAbout=calendar.insertTbCell(trRow,0,"-","center"); 
calendar.calendarAbout.title="帮助 快捷键:H"; 
calendar.calendarAbout.onclick=function(){calendar.about();} 
/*********** Calendar Head ***************/ 
tbCell=trRow.insertCell(1); 
tbCell.colSpan=5; 
tbCell.bgColor="#99CCFF"; 
tbCell.align="center"; 
tbCell.style.cssText = "cursor:default"; 
calendar.head=tbCell; 
/*********** Calendar Close Button ***************/ 
tbCell=trRow.insertCell(2); 
calendar.calendarClose = calendar.insertTbCell(trRow,2,"x","center"); 
calendar.calendarClose.title="关闭 快捷键:ESC或X"; 
calendar.calendarClose.onclick=function(){calendar.hide();} 

/*********** Calendar PrevYear Button ***************/ 
trRow = tbBoard.insertRow(1); 
calendar.prevYear = calendar.insertTbCell(trRow,0,"<<","center"); 
calendar.prevYear.title="上一年 快捷键:↑"; 
calendar.prevYear.onmousedown=function(){ 
calendar.currentDate[0]--; 
calendar.show(calendar.target,calendar.returnTime,calendar.currentDate[0]+"-"+calendar.formatTime(calendar.currentDate[1])+"-"+calendar.formatTime(calendar.currentDate[2]),calendar.source); 
} 
/*********** Calendar PrevMonth Button ***************/ 
calendar.prevMonth = calendar.insertTbCell(trRow,1,"<","center"); 
calendar.prevMonth.title="上一月 快捷键:←"; 
calendar.prevMonth.onmousedown=function(){ 
calendar.currentDate[1]--; 
if(calendar.currentDate[1]==0){ 
calendar.currentDate[1]=12; 
calendar.currentDate[0]--; 
} 
calendar.show(calendar.target,calendar.returnTime,calendar.currentDate[0]+"-"+calendar.formatTime(calendar.currentDate[1])+"-"+calendar.formatTime(calendar.currentDate[2]),calendar.source); 
} 
/*********** Calendar Today Button ***************/ 
calendar.goToday = calendar.insertTbCell(trRow,2,"今天","center",3); 
calendar.goToday.title="选择今天 快捷键:T"; 
calendar.goToday.onclick=function(){ 
if(calendar.returnTime) 
calendar.sltDate=calendar.today[0]+"-"+calendar.formatTime(calendar.today[1])+"-"+calendar.formatTime(calendar.today[2])+" "+calendar.formatTime(calendar.today[3])+":"+calendar.formatTime(calendar.today[4]) 
else 
calendar.sltDate=calendar.today[0]+"-"+calendar.formatTime(calendar.today[1])+"-"+calendar.formatTime(calendar.today[2]); 
calendar.target.value=calendar.sltDate; 
calendar.hide(); 
//calendar.show(calendar.target,calendar.today[0]+"-"+calendar.today[1]+"-"+calendar.today[2],calendar.source); 
} 
/*********** Calendar NextMonth Button ***************/ 
calendar.nextMonth = calendar.insertTbCell(trRow,3,">","center"); 
calendar.nextMonth.title="下一月 快捷键:→"; 
calendar.nextMonth.onmousedown=function(){ 
calendar.currentDate[1]++; 
if(calendar.currentDate[1]==13){ 
calendar.currentDate[1]=1; 
calendar.currentDate[0]++; 
} 
calendar.show(calendar.target,calendar.returnTime,calendar.currentDate[0]+"-"+calendar.formatTime(calendar.currentDate[1])+"-"+calendar.formatTime(calendar.currentDate[2]),calendar.source); 
} 
/*********** Calendar NextYear Button ***************/ 
calendar.nextYear = calendar.insertTbCell(trRow,4,">>","center"); 
calendar.nextYear.title="下一年 快捷键:↓"; 
calendar.nextYear.onmousedown=function(){ 
calendar.currentDate[0]++; 
calendar.show(calendar.target,calendar.returnTime,calendar.currentDate[0]+"-"+calendar.formatTime(calendar.currentDate[1])+"-"+calendar.formatTime(calendar.currentDate[2]),calendar.source); 

} 

trRow = tbBoard.insertRow(2); 
var cnDateName = new Array("日","一","二","三","四","五","六"); 
for (var i = 0; i < 7; i++) { 
tbCell=trRow.insertCell(i) 
tbCell.innerText=cnDateName[i]; 
tbCell.align="center"; 
tbCell.width=35; 
tbCell.style.cssText="cursor:default;border:1 solid #99CCCC;background-color:#99CCCC;"; 
} 

/*********** Calendar Body ***************/ 
trRow = tbBoard.insertRow(3); 
tbCell=trRow.insertCell(0); 
tbCell.colSpan=7; 
tbCell.height=97; 
tbCell.vAlign="top"; 
tbCell.bgColor="#F0F0F0"; 

var tbBody=document.createElement("table"); 
tbCell.insertAdjacentElement("beforeEnd",tbBody); 
tbBody.style.cssText="position:relative;top:0;left:0;width:245;height:103;font-size:9pt;" 
tbBody.cellPadding=0; 
tbBody.cellSpacing=1; 
calendar.body=tbBody; 

/*********** Time Body ***************/ 
trRow = tbBoard.insertRow(4); 
tbCell=trRow.insertCell(0); 
calendar.prevHours = calendar.insertTbCell(trRow,0,"-","center"); 
calendar.prevHours.title="小时调整 快捷键:Home"; 
calendar.prevHours.onmousedown=function(){ 
calendar.currentDate[3]--; 
if(calendar.currentDate[3]==-1) calendar.currentDate[3]=23; 
calendar.bottom.innerText=calendar.formatTime(calendar.currentDate[3])+":"+calendar.formatTime(calendar.currentDate[4]); 
} 
tbCell=trRow.insertCell(1); 
calendar.nextHours = calendar.insertTbCell(trRow,1,"+","center"); 
calendar.nextHours.title="小时调整 快捷键:End"; 
calendar.nextHours.onmousedown=function(){ 
calendar.currentDate[3]++; 
if(calendar.currentDate[3]==24) calendar.currentDate[3]=0; 
calendar.bottom.innerText=calendar.formatTime(calendar.currentDate[3])+":"+calendar.formatTime(calendar.currentDate[4]); 
} 
tbCell=trRow.insertCell(2); 
tbCell.colSpan=3; 
tbCell.bgColor="#99CCFF"; 
tbCell.align="center"; 
tbCell.style.cssText = "cursor:default"; 
calendar.bottom=tbCell; 
tbCell=trRow.insertCell(3); 
calendar.prevMinutes = calendar.insertTbCell(trRow,3,"-","center"); 
calendar.prevMinutes.title="分钟调整 快捷键:PageUp"; 
calendar.prevMinutes.onmousedown=function(){ 
calendar.currentDate[4]--; 
if(calendar.currentDate[4]==-1) calendar.currentDate[4]=59; 
calendar.bottom.innerText=calendar.formatTime(calendar.currentDate[3])+":"+calendar.formatTime(calendar.currentDate[4]); 
} 
tbCell=trRow.insertCell(4); 
calendar.nextMinutes = calendar.insertTbCell(trRow,4,"+","center"); 
calendar.nextMinutes.title="分钟调整 快捷键:PageDown"; 
calendar.nextMinutes.onmousedown=function(){ 
calendar.currentDate[4]++; 
if(calendar.currentDate[4]==60) calendar.currentDate[4]=0; 
calendar.bottom.innerText=calendar.formatTime(calendar.currentDate[3])+":"+calendar.formatTime(calendar.currentDate[4]); 
} 

} 

/************** 加入功能按钮公共样式 *********************/ 
this.insertTbCell=function(trRow,cellIndex,TXT,trAlign,tbColSpan){ 
var tbCell=trRow.insertCell(cellIndex); 
if(tbColSpan!=undefined) tbCell.colSpan=tbColSpan; 

var btnCell=document.createElement("button"); 
tbCell.insertAdjacentElement("beforeEnd",btnCell); 
btnCell.value=TXT; 
btnCell.style.cssText="width:100%;border:1 outset;background-color:buttonface;"; 
btnCell.onmouseover=function(){ 
btnCell.style.cssText="width:100%;border:1 outset;background-color:#F0F0F0;"; 

} 
btnCell.onmouseout=function(){ 
btnCell.style.cssText="width:100%;border:1 outset;background-color:buttonface;"; 
} 
// btnCell.onmousedown=function(){ 
// btnCell.style.cssText="width:100%;border:1 inset;background-color:#F0F0F0;"; 
// } 
btnCell.onmouseup=function(){ 
btnCell.style.cssText="width:100%;border:1 outset;background-color:#F0F0F0;"; 
} 
btnCell.onclick=function(){ 
btnCell.blur(); 
} 
return btnCell; 
} 

this.setDefaultDate=function(){ 
var dftDate=new Date(); 
calendar.today[0]=dftDate.getYear(); 
calendar.today[1]=dftDate.getMonth()+1; 
calendar.today[2]=dftDate.getDate(); 
calendar.today[3]=dftDate.getHours(); 
calendar.today[4]=dftDate.getMinutes(); 
} 

/****************** Show Calendar *********************/ 
this.show=function(targetObject,returnTime,defaultDate,sourceObject){ 
if(targetObject==undefined) { 
alert("未设置目标对象. \n方法: ATCALENDAR.show(obj 目标对象,boolean 是否返回时间,string 默认日期,obj 点击对象);\n\n目标对象:接受日期返回值的对象.\n默认日期:格式为\"yyyy-mm-dd\",缺省为当前日期.\n点击对象:点击这个对象弹出calendar,默认为目标对象.\n"); 
return false; 
} 
else calendar.target=targetObject; 

if(sourceObject==undefined) calendar.source=calendar.target; 
else calendar.source=sourceObject; 

if(returnTime) calendar.returnTime=true; 
else calendar.returnTime=false; 

var firstDay; 
var Cells=new Array(); 
if((defaultDate==undefined) || (defaultDate=="")){ 
var theDate=new Array(); 
calendar.head.innerText = calendar.today[0]+"-"+calendar.formatTime(calendar.today[1])+"-"+calendar.formatTime(calendar.today[2]); 
calendar.bottom.innerText = calendar.formatTime(calendar.today[3])+":"+calendar.formatTime(calendar.today[4]); 

theDate[0]=calendar.today[0]; theDate[1]=calendar.today[1]; theDate[2]=calendar.today[2]; 
theDate[3]=calendar.today[3]; theDate[4]=calendar.today[4]; 
} 
else{ 
var Datereg=/^\d{4}-\d{1,2}-\d{2}$/ 
var DateTimereg=/^(\d{1,4})-(\d{1,2})-(\d{1,2}) (\d{1,2}):(\d{1,2})$/ 
if((!defaultDate.match(Datereg)) && (!defaultDate.match(DateTimereg))){ 
alert("默认日期(时间)的格式不正确！\t\n\n默认可接受格式为:\n1、yyyy-mm-dd \n2、yyyy-mm-dd hh:mm\n3、(空)"); 
calendar.setDefaultDate(); 
return; 
} 

if(defaultDate.match(Datereg)) defaultDate=defaultDate+" "+calendar.today[3]+":"+calendar.today[4]; 
var strDateTime=defaultDate.match(DateTimereg); 
var theDate=new Array(4) 
theDate[0]=strDateTime[1]; 
theDate[1]=strDateTime[2]; 
theDate[2]=strDateTime[3]; 
theDate[3]=strDateTime[4]; 
theDate[4]=strDateTime[5]; 
calendar.head.innerText = theDate[0]+"-"+calendar.formatTime(theDate[1])+"-"+calendar.formatTime(theDate[2]); 
calendar.bottom.innerText = calendar.formatTime(theDate[3])+":"+calendar.formatTime(theDate[4]); 
} 
calendar.currentDate[0]=theDate[0]; 
calendar.currentDate[1]=theDate[1]; 
calendar.currentDate[2]=theDate[2]; 
calendar.currentDate[3]=theDate[3]; 
calendar.currentDate[4]=theDate[4]; 

theFirstDay=calendar.getFirstDay(theDate[0],theDate[1]); 
theMonthLen=theFirstDay+calendar.getMonthLen(theDate[0],theDate[1]); 
//calendar.setEventKey(); 

calendar.calendarPad.style.display=""; 
var theRows = Math.ceil((theMonthLen)/7); 
//清除旧的日历; 
while (calendar.body.rows.length > 0) { 
calendar.body.deleteRow(0) 
} 
//建立新的日历; 
var n=0;day=0; 
for(i=0;i<theRows;i++){ 
theRow=calendar.body.insertRow(i); 
for(j=0;j<7;j++){ 
n++; 
if(n>theFirstDay && n<=theMonthLen){ 
day=n-theFirstDay; 
calendar.insertBodyCell(theRow,j,day); 
} 

else{ 
var theCell=theRow.insertCell(j); 
theCell.style.cssText="background-color:#F0F0F0;cursor:default;"; 
} 
} 
} 

//****************调整日历位置**************// 
var offsetPos=calendar.getAbsolutePos(calendar.source);//计算对象的位置; 
if((document.body.offsetHeight-(offsetPos.y+calendar.source.offsetHeight-document.body.scrollTop))<calendar.calendarPad.style.pixelHeight){ 
var calTop=offsetPos.y-calendar.calendarPad.style.pixelHeight; 
} 
else{ 
var calTop=offsetPos.y+calendar.source.offsetHeight; 
} 
if((document.body.offsetWidth-(offsetPos.x+calendar.source.offsetWidth-document.body.scrollLeft))>calendar.calendarPad.style.pixelWidth){ 
var calLeft=offsetPos.x; 
} 
else{ 
var calLeft=calendar.source.offsetLeft+calendar.source.offsetWidth; 
} 
//alert(offsetPos.x); 
calendar.calendarPad.style.pixelLeft=calLeft; 
calendar.calendarPad.style.pixelTop=calTop; 
} 
/****************** 计算对象的位置 *************************/ 
this.getAbsolutePos = function(el) { 
var r = { x: el.offsetLeft, y: el.offsetTop }; 
if (el.offsetParent) { 
var tmp = calendar.getAbsolutePos(el.offsetParent); 
r.x += tmp.x; 
r.y += tmp.y; 
} 
return r; 
}; 

//************* 插入日期单元格 **************/ 
this.insertBodyCell=function(theRow,j,day,targetObject){ 
var theCell=theRow.insertCell(j); 
if(j==0) var theBgColor="#FF9999"; 
else var theBgColor="#FFFFFF"; 
if(day==calendar.currentDate[2]) var theBgColor="#CCCCCC"; 
if(day==calendar.today[2]) var theBgColor="#99FFCC"; 
theCell.bgColor=theBgColor; 
theCell.innerText=day; 
theCell.align="center"; 
theCell.width=35; 
theCell.style.cssText="border:1 solid #CCCCCC;cursor:hand;"; 
theCell.onmouseover=function(){ 
theCell.bgColor="#FFFFCC"; 
theCell.style.cssText="border:1 outset;cursor:hand;"; 
} 
theCell.onmouseout=function(){ 
theCell.bgColor=theBgColor; 
theCell.style.cssText="border:1 solid #CCCCCC;cursor:hand;"; 
} 
theCell.onmousedown=function(){ 
theCell.bgColor="#FFFFCC"; 
theCell.style.cssText="border:1 inset;cursor:hand;"; 
} 
theCell.onclick=function(){ 
if(calendar.returnTime) 
calendar.sltDate=calendar.currentDate[0]+"-"+calendar.formatTime(calendar.currentDate[1])+"-"+calendar.formatTime(day)+" "+calendar.formatTime(calendar.currentDate[3])+":"+calendar.formatTime(calendar.currentDate[4]) 
else 
calendar.sltDate=calendar.currentDate[0]+"-"+calendar.formatTime(calendar.currentDate[1])+"-"+calendar.formatTime(day); 
calendar.target.value=calendar.sltDate; 
calendar.hide(); 
} 
} 
/************** 取得月份的第一天为星期几 *********************/ 
this.getFirstDay=function(theYear, theMonth){ 
var firstDate = new Date(theYear,theMonth-1,1); 
return firstDate.getDay(); 
} 
/************** 取得月份共有几天 *********************/ 

this.getMonthLen=function(theYear, theMonth) { 
theMonth--; 
var oneDay = 1000 * 60 * 60 * 24; 
var thisMonth = new Date(theYear, theMonth, 1); 
var nextMonth = new Date(theYear, theMonth + 1, 1); 
var len = Math.ceil((nextMonth.getTime() - thisMonth.getTime())/oneDay); 
return len; 
} 
/************** 隐藏日历 *********************/ 
this.hide=function(){ 
//calendar.clearEventKey(); 
calendar.calendarPad.style.display="none"; 

} 
/************** 从这里开始 *********************/ 
this.setup=function(defaultDate){ 
calendar.addCalendarPad(); 
calendar.addCalendarBoard(); 
calendar.setDefaultDate(); 
} 
/************** 格式化时间 *********************/ 
this.formatTime = function(str) { 
str = ("00"+str); 
return str.substr(str.length-2); 
} 

/************** 关于AgetimeCalendar *********************/ 
this.about=function(){ 
var strAbout = "\nWeb 日历选择输入控件操作说明:\n\n"; 
strAbout+="-\t: 关于\n"; 
strAbout+="x\t: 隐藏\n"; 
strAbout+="<<\t: 上一年\n"; 
strAbout+="<\t: 上一月\n"; 

strAbout+="今日\t: 返回当天日期\n"; 
strAbout+=">\t: 下一月\n"; 
strAbout+="<<\t: 下一年\n"; 
strAbout+="\nWeb日历选择输入控件\tVer:v1.0\t\nDesigned By:wxb \t\t2004.11.22\t\n"; 
alert(strAbout); 
} 

document.onkeydown=function(){ 
if(calendar.calendarPad.style.display=="none"){ 
window.event.returnValue= true; 
return true ; 
} 
switch(window.event.keyCode){ 
case 27 : calendar.hide(); break; //ESC 
case 37 : calendar.prevMonth.onmousedown(); break;//← 
case 38 : calendar.prevYear.onmousedown();break; //↑ 
case 39 : calendar.nextMonth.onmousedown(); break;//→ 
case 40 : calendar.nextYear.onmousedown(); break;//↓ 
case 84 : calendar.goToday.onclick(); break;//T 
case 88 : calendar.hide(); break; //X 
case 72 : calendar.about(); break; //H 
case 36 : calendar.prevHours.onmousedown(); break;//Home 
case 35 : calendar.nextHours.onmousedown(); break;//End 
case 33 : calendar.prevMinutes.onmousedown();break; //PageUp 
case 34 : calendar.nextMinutes.onmousedown(); break;//PageDown 
} 
window.event.keyCode = 0; 
window.event.returnValue= false; 
} 

calendar.setup(); 
} 

var CalendarWebControl = new atCalendarControl(); 
//<input type="text" name=""  onFocus="javascript:CalendarWebControl.show(this,false,this.value);">